Mackerel are a sign of summer's arrival, when they appear inshore in huge numbers all around the UK. As well as being a sustainable seafood choice, they are an important food source for many…

This is a predominantly subtidal species but can be found on the lowest parts of a sheltered rocky shore in summer.

This metallic green beetle can be seen visiting flowers on sunny days in spring and summer.

This streaky brown bird is a summer visitor to Britain, favouring open woodlands in the north and west.

Nudibranchs, also known as sea slugs, are much like their land-based relatives that you may spot in your garden. But, unlike your regular garden slug, the nudibranch can incorporate the stinging…

This little fish is found in rockpools during the summer months and has a clever adaptation that stops it being swept away by strong waves - their pelvic fins are fused to form a sucker that it…

This brightly-coloured beetle is often found feeding on flowers on warm days in late spring and summer.

A common moth across most of the UK. The large, hairy caterpillars are often seen in late summer.

The river lamprey is a primitive, jawless fish, with a round, sucker-mouth which it uses to attach to other fish to feed from them. Adults live in the sea and return to freshwater to spawn.